Case Report

Globus Pallidus Internus Deep Brain Stimulation for Disabling Diabetic Hemiballism/Hemichorea

Figure 1

Magnetic resonance imaging (MRI) findings of diabetic hemichorea/hemiballism.
(a) A T1-weighted MRI image showing hyperintensity involving the right putamen and globus pallidus. The caudate nucleus was spared in this case
(b) An irregular area of hypointense lesion within the isointense putamen and globus pallidus was found on a T2-weighted MRI image
(c) A T1-weighted MR image taken 16 months after the onset of diabetic HH. T1 hyperintensity in the right putamen was still identified but much attenuated, compared to the initial MRI. Note the hypointense metallic artefact of the DBS lead (arrow)